I purchased the Sig 556 rifle after I had gotten my 556 pistol. Mostly because of the $300 rebate, but also cause I loved the pistol so much. It took some time to find the right ammo for it. Finally after 4 trips and serval different types, I found the 75gr rounds work the best with the 1in7 twist barrels. Especially the Hornady tap 75gr precision( see last pic). The Cheaper prvi 75 grain had better groups on my previous target, but didn't have any pics.
So the only two 75 gr bullets really out grouped the 55gr by far. The good news is I finally got some great groups. The bad news is the damn ammo cost a small fortune!! Prvi=$13, Hornady=$15 per 20rnds. It really sucks as my Bushmaster Predator loves the $6 PMC "bronze" stuff. Of course its 1in8 twist. I wish Sig would have used a 1in8 twist for us Civilians.
50yds 3 shot groups. Sig556 w/ Leop vx1 3-9. Wind was Left to Right at 5 mphs and temp was 60 f
So the only two 75 gr bullets really out grouped the 55gr by far. The good news is I finally got some great groups. The bad news is the damn ammo cost a small fortune!! Prvi=$13, Hornady=$15 per 20rnds. It really sucks as my Bushmaster Predator loves the $6 PMC "bronze" stuff. Of course its 1in8 twist. I wish Sig would have used a 1in8 twist for us Civilians.
50yds 3 shot groups. Sig556 w/ Leop vx1 3-9. Wind was Left to Right at 5 mphs and temp was 60 f
